How much do you weigh? And a poor power clean can be due to many reasons. A much better way of testing your RFD, would be to test your vertical jump; standing, and off of a small height, 6-12 inches. If you can’t get higher from a bounce, then ur reactivty is terrible and you shuold try doing some pure plyos. Bouncy exercises, bounding, pure VJs. If you don’t have much experience with plyos, you probably need it, that’s the ebst way to increase your rfd and reactivity